Theres a specialist tool for removing the pinch bolt, but unless you were doing it for a living, what choice do you have. For reference the tool is made by Klann KL-0250-40 and retails for £400. You'd probably save that in nitrile gloves, blowtorch gas canisters and carbide metal drill bits in a year! This is quite an interesting take on it.
Step1: Remove the tool tray and spare tire. Under the spare tire of the Audi A4 is where the battery is located. Remove the battery brackets in step two. The battery bracket bolts can be removed with a 13mm socket. Remove the old battery in Step 3.
Step2 - Set up your secondary power source. If using a booster/jump pack; Find a stable location in the engine bay in which to site the jump pack where the leads can easily reach the battery terminals. Now clamp the crocodile clips of the booster pack over the leads that connect to the battery. Do not let the two crocodile clips touch each other!
AudiA4: Charging the 12 volt vehicle battery. Audi A4 (B9) Wheel Bearing Housing, Removing and Installing Special tools and workshop equipment required Spreader Tool -3424- Torque Wrench 1332 40-200Nm -VAG1332- Engine and Gearbox Jack -VAS6931- Ball Joint Splitter -VAS251805-, not illustrated Puller - Ball Joint -T40043- Caution This
Theaverage price of a 2009 Audi A4 battery replacement can vary depending on location. Look for any corrosion on the cables and remove it with a wire brush or terminal cleaning tool. Drop in
Stepsto change the battery in a 2010 Audi A4 2.0L 4 Cyl. Turbo: 1. Remove battery bracket 2. Loosen terminal clamps 3. Take out old battery
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audi a4 battery removal tool